Hi, I got this problem that's been going on for quite some time. When I log in to my desktop, the keyboard just spams a single key, "f" uncontrollably like it is being hold down. It goes like this... ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff. It's not always the "f" key. It can be any key. Sometimes it happens in the middle when I'm typing. As an example, "So when i type my words gets cut off like thisssssssssssssssssssssssssssssssss". My keyboard keys aren't stuck because it never happen before until windows 8.1 upgrade. I thought once when windows 10 releases, it would get fixed, but I guess not. This also happens when I went to go into lockscreen mode. It just does the same thing over again. It prevents me from logging back in since it just spams a single key forever. I already tried unplugging my keyboard and replugging it back in; It didn't work. Changing keyboard didn't work. The only way I temporarily fix it was to completely shutdown my pc through holding down on my power button. Rebooting didn't fix it because it just repeat the process. I ran a scan using malwarebytes, but there's no virus or any malware detected. The issue doesn't happen all the time, just randomly or when I incurred going into lockscreen mode. If there is a fix for this, this would help me a lot. Thanks!